Sentence Extraction by Spreading Activation through Sentence Similarity

Naoaki Okazaki*, Yutaka Matsuo, Naohiro Matsumura, Mitsuru Ishizuka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Although there has been a great deal of research on automatic summarization, most methods rely on statistical methods, disregarding relationships between extracted textual segments. We propose a novel method to extract a set of comprehensible sentences which centers on several key points to ensure sentence connectivity. It features a similarity network from documents with a lexical dictionary, and spreading activation to rank sentences. We show evaluation results of a multi-document summarization system based on the method participating in a competition of summarization, TSC (Text Summarization Challenge) task, organized by the third NTCIR project.

Original languageEnglish
Pages (from-to)1686-1694
Number of pages9
JournalIEICE Transactions on Information and Systems
Issue number9
Publication statusPublished - 2003 Sept
Externally publishedYes


  • Extraction
  • Sentence similarity
  • Spreading activation
  • Summarization

ASJC Scopus subject areas

  • Information Systems
  • Computer Graphics and Computer-Aided Design
  • Software


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